In the meta-class __init__ method, register a class as a gtype iff
In the meta-class __init__ method, register a class as a gtype iff

	* gobject/pygobject.c: In the meta-class __init__ method,
	register a class as a gtype iff __gsignals__, __gproperties__,
	or __gtype_name__ is defined in the leaf class's tp_dict.

atizo/pygobject,alexef/pygobject,nzjrs/pygobject,Distrotech/pygobject,MathieuDuponchelle/pygobject,thiblahute/pygobject,alexef/pygobject,choeger/pygobject-cmake,pexip/pygobject,jdahlin/pygobject,sfeltman/pygobject,atizo/pygobject,pexip/pygobject,davibe/pygobject,Distrotech/pygobject,atizo/pygobject,davidmalcolm/pygobject,davibe/pygobject,davibe/pygobject,GNOME/pygobject,pexip/pygobject,davibe/pygobject,choeger/pygobject-cmake,jdahlin/pygobject,choeger/pygobject-cmake,alexef/pygobject,nzjrs/pygobject,jdahlin/pygobject,MathieuDuponchelle/pygobject,davidmalcolm/pygobject,sfeltman/pygobject,davidmalcolm/pygobject,sfeltman/pygobject,MathieuDuponchelle/pygobject,thiblahute/pygobject,Distrotech/pygobject,GNOME/pygobject,GNOME/pygobject,nzjrs/pygobject,Distrotech/pygobject,thiblahute/pygobject